On Monday, 9 March 2015 at 08:13:47 UTC, Ola Fosheim Grøstad
wrote:
Flexibility is also important for creating good UIs. Complex
applications never reuse much from existing GUIs, they create
their own for all the critical tasks.
They still mostly rely on existing functionality, and I wouldn't
say it will be easier in HTML5. You will deal with all the same
primitives, which of course will break with next update.
HTML5 is an adopted agreed upon standard with backwards
compatible enhancements that works cross platform.
Yet, web 2.0 technologies have only rudimentary notion of
backward compatibility, all it breaks routinely.